On Tue, 2010-03-16 at 14:53 +0900, KOSAKI Motohiro wrote: > commit 3f226aa1c (mempolicy: support mpol=local tmpfs mount option) > added new mpol=local mount option. but it didn't add a documentation. > > This patch does it. > > Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> > Cc: Ravikiran Thirumalai <kiran@xxxxxxxxxxxx> > Cc: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx> > Cc: Mel Gorman <mel@xxxxxxxxx> > Cc: Lee Schermerhorn <lee.schermerhorn@xxxxxx> > Cc: Hugh Dickins <hugh.dickins@xxxxxxxxxxxxx> > Cc: <stable@xxxxxxxxxx> Acked-by: Lee Schermerhorn <lee.schermerhorn@xxxxxx> [Note: looking at this patch in context, it appears that a few more updates are in order. E.g., "contextualization" of the specified nodelists based on mems_allowed when one allocates a tmpfs file and what happens when the mount option nodelist is disjoint from a task's mems_allowed. I'll test the behavior to make sure it matches my expectations and update the doc accordingly in a subsequent patch.] > --- > Documentation/filesystems/tmpfs.txt | 6 +++++- > 1 files changed, 5 insertions(+), 1 deletions(-) > > diff --git a/Documentation/filesystems/tmpfs.txt b/Documentation/filesystems/tmpfs.txt > index 3015da0..fe09a2c 100644 > --- a/Documentation/filesystems/tmpfs.txt > +++ b/Documentation/filesystems/tmpfs.txt > @@ -82,11 +82,13 @@ tmpfs has a mount option to set the NUMA memory allocation policy for > all files in that instance (if CONFIG_NUMA is enabled) - which can be > adjusted on the fly via 'mount -o remount ...' > > -mpol=default prefers to allocate memory from the local node > +mpol=default use the process allocation policy > + (see set_mempolicy(2)) > mpol=prefer:Node prefers to allocate memory from the given Node > mpol=bind:NodeList allocates memory only from nodes in NodeList > mpol=interleave prefers to allocate from each node in turn > mpol=interleave:NodeList allocates from each node of NodeList in turn > +mpol=local prefers to allocate memory from the local node > > NodeList format is a comma-separated list of decimal numbers and ranges, > a range being two hyphen-separated decimal numbers, the smallest and > @@ -134,3 +136,5 @@ Author: > Christoph Rohland <cr@xxxxxxx>, 1.12.01 > Updated: > Hugh Dickins, 4 June 2007 > +Updated: > + KOSAKI Motohiro, 16 Mar 2010 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>